.display {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  justify-content: center;
  margin: 2rem 0;
  font-size: 3rem;
}

input {
  width: 3.25rem;
  margin: 0;
  color: black;
  font-size: 2rem;
  text-align: center;
  border: none;
  border-bottom: 1px solid grey;
  border-radius: 0;
  outline: none;
  -webkit-appearance: none;
  -moz-appearance: textfield;
}
